| 摘要 |
The device is provided with a control unit (12) inside the container (13) for varying the resonance cross-section. The control unit has guide walls (13,14) running spaced apart from the walls (16-19) of the resonance container. The resonance container has a prismatic basic shape with longitudinal walls (20,21) facing the cylinder ranks (2) together with first and second face walls (22,23). The guide walls of the control unit run in the same direction to the longitudinal walls and the face walls. The control unit is adjustable between a first end position (STEI) and a second end position, whereby a rib wall (26) of the control unit, at least in the first end position, together with the first face wall (22) forms a connecting channel (27) to the resonance volumes (28,29) in the resonance container. |
